There are many large, fascinating animals in the world, but the ocean is home to monstrous creatures on a whole new level!
Many of the different aquatic species dwarf even the most massive animals that you can find on earth, reaching sizes so large that they’re almost impossible to wrap your head around
So just how massive can the largest ocean animals get?
Today we will learn about 10 of the largest sea creatures in the world and rank them by size
Japanese Spider Crab
Genus: Macrocheira
Diet: Mollusks, Algae
Distinctive features: sharp claws
If normal spiders make your skin crawl, then you’d probably be better off avoiding the world’s largest arthropod: the Japanese spider crab!
Especially large specimens can reach up to 42 pounds, and these crabs are often kept for food because they provide so much meat
Japanese spider crabs are large, but they are not immune to all predators – they use their hard exoskeleton and camouflage to keep themselves safe
The American lobster is the only arthropod in the world that has more mass than the Japanese spider crab
Genus: Cyanea
Diet: crustaceans, jellyfish
Distinctive features: thin, wispy arms
The majestic but dangerous Lion’s Mane Medaliz lives mainly in frigid northern waters such as those found in the Arctic Circle and certain parts of the Baltic Sea The bell jellyfish, or top part, alone can be up to eight feet in diameter!
The tentacles are usually well in proportion to his body, but they can grow to be longer than many whales and shoot out very poisonous barbs to incapacitate his prey
When jellyfish float in the Baltic Sea, they cannot breed due to the low salinity of the water
Genus: Regalecus
Diet: Plankton, small fish, and squid
Distinctive features: Long, narrow body
The Giant Oarfish is the longest bony fish in the world and is rarely encountered by humans because it is kept in deep sea water
These long and thin fish are often said to be the most likely source of the ancient claims of sightings of sea serpents and sea monsters
The Giant Oarfish’s dorsal fin stretches along the entire length of its body
Great white shark
Genus: Carcharodon
Diet: fish, squid, seals
Distinctive features: white underbelly
The Great White Shark is the largest predatory shark in the world, and was made famous by the movie JAWS for its aggression
These sharks are quite social, usually traveling and hunting in groups
Interestingly, Great White Sharks avoid fighting each other because they have a great ability to cripple and damage each other: They tend to resolve conflicts with displays of aggression and power instead of fighting directly
The only known predator of the Great White Shark is the occasional Orca, and even threats from Orcas are rare
Online game Giant Manta Ray
Genus: Mobula
Distinctive features: Wide, flat body and fins
The incredible Giant Manta Ray is the largest ray in the world, with a “span” of up to 29 feet
They are technically carnivorous, but their diet is restricted to zooplankton that they filter out of the water while swimming
Gills are located on the underside of their disc-shaped bodies, and they move their fins like flapping wings to move through the temperate waters they inhabit
The name “Manta” actually means blanket or mantle in Spanish, and is meant to refer to the unique body shape of the animals
Genus: Orcinus
Diet: Seals, sharks
Distinctive features: dark black and white markings
Orcas, the largest members of the dolphin family, are also commonly known as “Killer Whales” due to their status as apex predators
Orcas will hunt and eat almost any animal within reach, including other whales
They are also known for being the most widespread mammal on earth other than humans, living in various types of ocean waters all over the world
Orcas live in two types of groups, called pods, of up to 40 members
Whale shark
Genus: Rhincodon
Distinctive features: Width, top lip and mouth
The world’s largest shark is actually a filter feeder, eating only zooplankton and whatever small fish they catch in their mouths while swimming
These majestic animals can live anywhere from 70 to about 130 years and each individual shark has its own unique pattern of brown spots
Whale sharks live mostly alone, but will happily share feeding grounds
Aside from the whale shark, the megamouth shark and the basking shark are the only two other filter-feeding sharks in the world
Sperm whale
Genus: Physeter
Diet: giant squid, sharks
Distinctive features: blunt muzzle
A massive whale, this predator eats everything from golden sharks and squid to rays and octopus
The sperm whale is also known to inspire the “white whale” in the famous Moby Dick story
This whale is the largest toothed whale and the largest toothed predator in the world, and one of only three living species in the sperm whale family
Fin fin
Diet: Plankton
Diet: Plankton
Diet: Plankton
Distinctive features: Long, thin body with a distinct ridge
A noticeable ridge runs on the whale’s back, causing it to be nicknamed the razorback
Another fascinating and unique feature of this whale is that its lower jaw is black on the left and stark white on the right
Unfortunately, the whale is now endangered after being hunted along with many other whale species during the peak of whaling in the 20th century
Blue whale
Size: 330,000 pounds, 82 feet
Size: 330,000 pounds, 82 feet
Size: 330,000 pounds, 82 feet
Genus: Balaenoptera
Genus: Balaenoptera
Diet: Krill
Distinctive features: ridged throat
The blue whale is the largest sea animal in the world
It is actually divided into five different subspecies separately recognized, all of which have been reduced to distressingly low numbers as a result of whaling
The blue whale has special status as the largest mammal that ever lived, and its heart alone weighs about 1,500 pounds!
It shares the subspecies of the Mysticeti whale with the gray and beluga whales
Female blue whales are usually noticeably larger than males